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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-836.497782
Energy at 298.15K 
HF Energy-836.373343
Nuclear repulsion energy141.021336
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 242 229 5.29 10.58 0.59 0.74
2 A 308 292 20.38 7.86 0.66 0.79
3 A 648 615 3.78 15.31 0.19 0.32
4 A 928 881 4.66 10.69 0.53 0.69
5 A 1247 1183 1.58 22.43 0.68 0.81
6 A 1505 1428 1.76 17.44 0.75 0.85
7 A 2737 2598 4.95 116.79 0.17 0.29
8 A 3133 2974 8.94 89.70 0.12 0.21
9 B 262 249 45.54 1.08 0.75 0.86
10 B 735 698 2.07 1.41 0.75 0.86
11 B 768 729 28.89 10.78 0.75 0.86
12 B 1040 987 29.79 7.58 0.75 0.86
13 B 1315 1248 27.90 3.45 0.75 0.86
14 B 2737 2598 13.02 98.27 0.75 0.86
15 B 3193 3031 1.37 66.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10398.1 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 9869.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP/6-31G*
ABC
0.88815 0.10416 0.09755

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
S2 0.000 1.554 -0.179
S3 0.000 -1.554 -0.179
H4 0.879 -0.055 1.421
H5 -0.879 0.055 1.421
H6 1.114 1.295 -0.885
H7 -1.114 -1.295 -0.885

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82551.82551.09031.09032.38492.3849
S21.82553.10782.43402.36241.34433.1395
S31.82553.10782.36242.43403.13951.3443
H41.09032.43402.36241.76142.68323.2911
H51.09032.36242.43401.76143.29112.6832
H62.38491.34433.13952.68323.29113.4170
H72.38493.13951.34433.29112.68323.4170

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.412 C1 S3 H7 96.412
S2 C1 S3 116.689 S2 C1 H4 110.640
S2 C1 H5 105.442 S3 C1 H4 105.442
S3 C1 H5 110.640 H4 C1 H5 107.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.558      
2 S -0.054      
3 S -0.054      
4 H 0.218      
5 H 0.218      
6 H 0.115      
7 H 0.115      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.408 0.408
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.877 1.992 0.000
y 1.992 -39.450 0.000
z 0.000 0.000 -32.502
Traceless
 xyz
x 4.099 1.992 0.000
y 1.992 -7.261 0.000
z 0.000 0.000 3.162
Polar
3z2-r26.324
x2-y27.574
xy1.992
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.213 0.118 0.000
y 0.118 7.805 0.000
z 0.000 0.000 5.354


<r2> (average value of r2) Å2
<r2> 116.547
(<r2>)1/2 10.796